Analysis
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max time kernel
149s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21/11/2024, 11:08
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe
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Size
79KB
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MD5
d3612ca6ecfcf21baa8aac830f4a3267
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SHA1
6465d82b8d012e7c5bd08f153f3656cc757bae30
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SHA256
adc74f7256ef2acbad006632b5da843532c66e0022d1e8294bd0c1f32033999d
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SHA512
cd02e067f4a61a85ea4e79d60bab810281cbc7d5bc85ecab9819331b70936d84587d73767ce8511825660de34297917bb9fc8692b9cf5ddd4988d6812be4fae0
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktj:X6a+SOtEvwDpjBZYvQd2i
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation 2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4580 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3468 wrote to memory of 4580 3468 2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe 82 PID 3468 wrote to memory of 4580 3468 2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe 82 PID 3468 wrote to memory of 4580 3468 2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-21_d3612ca6ecfcf21baa8aac830f4a3267_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3468 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4580
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
79KB
MD5a722a89f8328afd2c123fe71a8a02995
SHA194e94e3fd2049d7b0200680559b5b679c1ddda83
SHA2562275d63ebba8df11486dcb0281c958a628a439d21ec530501bc6449e270f668c
SHA512020c9913502a27d6eac842abcac8ff70f147b047cd94914298b10c5c3f14dee308956d8c89ad1146f21d93f1093032e2d525d9ec027f5acea4c07c76ed6d8d43